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Finding the Fourth Proportional to 125,761.50, 188,696.97 and 46,865.52

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Solution

The fourth proportional to 125,761.50, 188,696.97 and 46,865.52 is: 70,318.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,761.50 : 188,696.97 = 46,865.52 : x
  2. Step 2: Convert to fraction form
    125,761.50/188,696.97 = 46,865.52/x
  3. Step 3: Cross multiply
    125,761.50x = 188,696.97 × 46,865.52
  4. Step 4: Simplify right side
    125,761.50x = 8,843,381,621.47
  5. Step 5: Solve for x
    x = 8,843,381,621.47/125,761.50
  6. Step 6: Final answer
    x = 70,318.67

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.